body {
    padding-top: constant(safe-area-inset-top);   /*//为导航栏+状态栏的高度 88px */           
    padding-left: constant(safe-area-inset-left);    /*//如果未竖屏时为0*/                
    padding-right: constant(safe-area-inset-right);/* //如果未竖屏时为0     */           
    padding-bottom: constant(safe-area-inset-bottom);/*//为底下圆弧的高度 34px*/       
}

@media only screen and (device-width: 375px) and (device-height: 812px) and 
(-webkit-device-pixel-ratio: 3) {
    /*增加头部适配层*/
    .has-topbar {
        height: 100%;
        box-sizing: border-box;
        padding-top: 44px;
        &:before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 44px;
            background-color: #000000;
            z-index: 9998;
        }
    }

    /*增加底部适配层*/
    .has-bottombar {
        height: 100%;
        box-sizing: border-box;
        padding-bottom: 34px;
        &:after {
            content: '';
            z-index: 9998;
            position: fixed;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 34px;
            background: #f7f7f8;
        }
    }

    /*导航操作栏上移*/
    .bottom-menu-fixed {
        bottom: 34px;
    }
}


/*div{border: 1px solid red;}*/
.main{
	max-width: 1080px;
}
img{
	width: 100%;height: 100%;
}

.top_top{
	display: flex;
	width: 95%;
	height: 6vw;
	background-color: #75af50;
	margin: 0 auto;
}

/*底部*/
.bottom{
	display: flex;
	justify-content: space-around;
	height:11.8vw;
	text-align: center;
}
.bottom_tan{
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 3.5vw;
	color: white;
}



.yibai{
	width: 100%;
}
